CircuitBreaker (Helidon Project 2.6.9 API)

All Superinterfaces:

FtHandler
```
public interface CircuitBreaker
extends FtHandler
```
CircuitBreaker protects a potentially failing endpoint from overloading and the application from spending resources on those endpoints.
In case too many errors are detected, the circuit opens and all new requests fail with a CircuitBreakerOpenException for a period of time. After this period, attempts are made to check if the service is up again - if so, the circuit closes and requests can process as usual again.

Nested Class Summary

Nested Classes
Modifier and Type	Interface	Description
`static class`	`CircuitBreaker.Builder`	Fluent API builder for `CircuitBreaker`.
`static class`	`CircuitBreaker.State`	A circuit breaker can be in any of 3 possible states as defined by this enum.

Method Summary

All Methods Static Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`static CircuitBreaker.Builder`	`builder()`	Builder to customize configuration of the breaker.
`CircuitBreaker.State`	`state()`	Current breaker state.
`void`	`state(CircuitBreaker.State newState)`	Set state of this circuit breaker.

Methods inherited from interface io.helidon.faulttolerance.FtHandler
invoke, invokeMulti, name

- Method Detail
  - builder
```
static CircuitBreaker.Builder builder()
```
    Builder to customize configuration of the breaker.
    
    Returns:
    
    a new builder
  - state
```
CircuitBreaker.State state()
```
    Current breaker state. As the state may change within nanoseconds, this is for information only.
    
    Returns:
    
    current breaker state
  - state
```
void state(CircuitBreaker.State newState)
```
    Set state of this circuit breaker. Note that all usual processes to re-close or open the circuit are in progress.
    
    If set to CircuitBreaker.State.OPEN, a timer will set it to half open in a while
    
    If set to CircuitBreaker.State.HALF_OPEN, it may close after first successful request
    
    If set to CircuitBreaker.State.CLOSED, it may open again if requests fail
    
    So a subsequent call to state() may yield a different state than configured here
    Parameters:
    
    newState - state to configure